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Posted by "mail" on 09/29/05 00:25
>Norbert Wenzel wrote:
>> Hi, i have a very strange example of code. Maybe you know where my
>> mistake could be.
>>
>> I've got an index.php with a few div's and a short php code, like:
>> <div>echo $_SESSION['view']->getContent();</div>
>>
>> The view is in every case one of my view objects. And there's the problem.
>>
>> In my specific case $_SESSION['view'] is of class "NoLoggedUserView",
>> which of course extends "View". The "View" class containts a few public
>> methods, namely
>>
>> getTitle()
>> getHeadline()
>> getSelection()
>> getSubselection()
>> getContentHeadline()
>> getContent()
>> getFunctions()
>>
>> The child class "NoLoggedUserView" contains only the
>> getContent()-method, which provides a login window.
>>
>> But of course I still call all the other methods like getTitle() in my
>> index.php.
>>
>> Until yesterday I encountered no problems with that, but today, if i
>> call $noLoggedUserView->getTitle() in the index.php i get an empty
>> document. No error, no warning, no notice ... nothing. The page stays
>> the same and doesn't change. Even the timestamp I print out to check if
>> there has been a change, doesn't change.
>>
>> I tested a few things:
>> The page loads fine and without any problems, if the public method
>> getTitle() is written in the NoLoggedUserView and the method returns a
>> stupid string. If getTitle() in NoLoggedUserView looks like this
>
>did you try letting the parent class method just return a string constant?
The method in parent class just returns a string constant. I'm at home right no, but as far as I remeber it looks pretty much like this:
public function getTitle() { //in parent class View
return 'My Company:';
}
>
>> public function getTitle() {
>> return parent::getTitle();
>> }
>> there is the same problem as before. I get an empty page, no changes are
>> made.
>>
>> My current version of getTitle() looks like this:
>
>current version in NoLoggedUserView I presume, whats the definition
>in the parent class?
yes, in no logged user view.
See the parent class above.
>
>> public function getTitle() {
>> //return 'NoLoggedTitle'; // works great
>> //return parent::getTitle(); // no changes are made
>
>what if there is no parent?
there is, because it's just a test to see if i get this working. until yesterday i just called $_SESSION['view']->getTitle() and since this was an instance of View the method should be at least available in View.
>>
>> $classname = get_parent_class($this);
>> $v = new $classname();
>
>now just imagine if: $classname === false
see message above, it's just to make the page working.
>> return $v->getTitle(); // works great
>> }
>>
>> And again, this strange thing works.
>>
>> So what could cause php to act like this? Any ideas or suggestions or at
>> least assumptions?
>>
>> Please, I really don't know where to search the mistake..
>
>use a shed load of echo(), print_r() and/or var_dump() to see what stufff is
>and how far along the execution gets - I do it now and again when I have
>bumped into another segfault.
>
>i.e. do stuff like
>
>echo 1,"<br>";
>// your code here
>echo 2,"<br>";
>// your code here
>echo 3,"<br>";
I would like to do so, but the page doesn't even load a blank page on error. the page stays the same as it was before, so if do reload nothing happens, just as if the page doesn't get compiled or so.
but then again, if i change the page, so it doesn't need to call any parent:: stuff, it compiles and loads without any errors.
so it looks like the page isn't even compiled when calling parent:: ...
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